Prionopeltis striata-Scharyia nympha Assemblage, Prague Basin (Silurian of Czech Republic)

Where: Czech Republic (49.5° N, 13.5° E: paleocoordinates 49.6° S, 55.2° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Pozary Formation, Pridoli (423.0 - 419.2 Ma)

• Type locality is in Monograptus parultimus and M. ultimus Zones (which would make it early Pridoli). "Although this assemblage is typically developed in the Early Pridolian, its less diversified analogies are traceable in coarser biodetrital layers even higher, up to the Monograptus transgrediens Zone.

• formation-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, gray lime mudstone and calcareous shale

• "Fossils are mostly fragmented, sorted and accumulated in thin layers reflecting higher energy pulses and changing circulation succeeding the Basal Pridolian Transgressive Event, probably BA 3 and 4."
• "The fauna is contained in well bedded, play grey bituminous finely biodterital and biomicritic limestones alternating with subordinate calcareous shale interbeds."

Primary reference: I. Chlupac. 1987. Ecostratigraphy of Silurian trilobite assemblages of the Barrandian area, Czechoslovakia. Newsletters on Stratigraphy 17(3):169-186 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14131: authorized by Michael Foote, entered by Michael Foote on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• For the most part, only trilobites are listed to genus level, but many other groups reported present.
Show authors, comments, and common names
unclassified
  -
Scolecodonta indet.
Psilophytopsida
 Psilophytales -
Cooksonia sp.
Cooksonia sp. Lang 1937
land plant
Trilobita
 Odontopleurida - Odontopleuridae
Radiaspis nauseola, Leonaspis ezellina, Ceratocephala rhabdopleura
 Proetida - Proetidae
"Prionopeltis striata" = Phaetonides striatus, Prionopeltis unica
"Prionopeltis striata" = Phaetonides striatus Barrande 1846 trilobite
Prionopeltis unica Šnajdr 1976 trilobite
 Proetida - Scharyiidae
Scharyia nympha
Scharyia nympha Chlupac 1971 trilobite
 Proetida - Otarionidae
Otarion sp.
Otarion sp. Zenker 1833 trilobite
 Harpetida - Harpetidae
Bohemoharpes sp.
Bohemoharpes sp. Vanek 1963 trilobite
 Corynexochida - Styginidae
Scutelluidae indet.
Scutelluidae indet. Richter and Richter 1955 trilobite
 Phacopida - Cheiruridae
Crotalocephalus transiens
 Phacopida - Encrinuridae
? Encrinuraspis testosteron
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Malacostraca
 Phyllocarida -
Phyllocarida indet.
Euchelicerata
 Eurypterida - Slimonidae
? Slimonia sp.
? Slimonia sp. Page 1856 eurypterid
"Slimonia finds doubtful"
 Eurypterida - Pterygotidae
Acutiramus nobilis, Acutiramus bohemicus, Pterygotus fissus, Pterygotus barrandei
Acutiramus bohemicus Barrande 1872 eurypterid
Pterygotus fissus Seemann 1906 eurypterid
Pterygotus barrandei Semper 1898 eurypterid
Rhynchonellata
 Pentamerida - Gypidulidae
Cadudium sp.
 Atrypida - Atrypinidae
Gracianella sp.
Gracianella sp. Johnson and Boucot 1967
 Atrypida - Septatrypidae
"Dubaria sp." = Septatrypa
"Dubaria sp." = Septatrypa Kozlowski 1929
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Cephalopoda
 Nautiloidea -
Nautiloidea indet.
Nautiloidea indet. Agassiz 1847 nautiloid
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Conodonta
  -
Conodonta indet.
Conodonta indet. Pander 1856 conodont
Pterobranchia
 Dendroidea -
Dendroidea indet.
Dendroidea indet. Nicholson 1872 graptolite
 Graptoloidea -
Graptoloidea indet.
Graptoloidea indet. Lapworth 1875 graptolite
unclassified
  -
Porifera indet.
Porifera indet. Grant 1836
Scyphozoa
 Conulariida -
Conulariida indet.
Conulariida indet. Miller and Gurley 1896 jellyfish
Chitinozoa
 Chitinozoa -
Chitinozoa indet.
Chitinozoa indet. Nõlvak 2007